Key-filing device.



No. 870,218. n PATENTED Nov.l 5,1907. J. D. EOW'NE. KEY FILING DEVICE.

vAPPLIQATIO FILED NOV.15 1906.

- TIE- l P-15.- E G bled, Fig. 2 being a back View, and Fig. 3 a top plan :UNTTED STATES PATENT OFFICE.

JOHN D. BOWNE, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO JOHN WALLACE SLAWSON, OF NEW YORK, N. Y.

KEY-FILING DEVICE.

Application filed November 15 To all whom it may concern:

Be it known that I, JOHN D, BowNn, a citizen of the United States, residing at New York, in the county of New York and State ot New York, have invented certain new and useful Improvements in Key-Filing Devices, of which the following is a speciiication.

My invention relates to key-filing devices, and has for its object the production of a combination of clamping contrivances having particular construction and arrangement, whereby there may be conveniently and suitably held, the blank to be iiled, and the pattern to be followed.

My invention includes also a vertically-movable and horizontally-movable and guided member designed to follow the pattern and at the same time to indicate, by its position with respect to the blank, where the essential cuts are to be made and of what depth.

I accomplish the stated objects by fashioning and associating parts as illustrated in the accompanying drawings, of which Figure l represents a side view of all parts assem- View.

Like letters of reference are used to designate like parts throughout.

In the preferred embodiment of my invention I construct a vise-frame A having a recess a and clamping screw a by which the frame may be secured to a bench or other support.

The upper part of the frame is formed into an abutment B which constitutes the stationary jaw of a vise, the pivoted jaw being marked b and pivotally connected to a suitably projecting portion of the front of the frame by means of pin bf. The screw of the vise is designated by the character b2 and the handle bar by b3. The office of the vise is to clamp in acertain fixed position the key blank desired to be liled. A key blank is shown in the vise and bears the reference letter O.

Considering now the back view, Fig. 2, in connection with Fig. l, it will be noted that there are formed in'- tegrally with frame A and projecting rearwardly two bracket lugs D, each provided with recesses d open at the top and adapted to receive a cross-plate E, which is made to lit the recesses d movably. It is thought to be clear that the plate E may be moved vertically and horizontally in the recesses. The plate carries a vertical bar F, usually formed integrally with the plate, and, obviously pai-taking of any movements of the plate. At the upper end of the bar F is attached the lile guide G, in this instance a V-shaped trough having a transverse recess g through its lower edge adapted to receive the key blank edge as illustrated, and indicating visually the position and size of the cut on both Specification of Letters Patent.

Patented Nov. 5, 1907'. 1906. Serial No. 343,613.

sides of the key blank. The le guide is removably secured to bar F by screw g, in order that it may be replaced by a guide of different shape when desired. At the lower end of vertical bar F, there is adjustably secured the follower block I-I, provided with a wedgeshaped end h that is arranged to enter the correspondingly formed notches of a key pattern J, shown in the drawings as clamped, notched edge up, and in position to engage block H. Pattern J is held by the clamping plate K and set screw k provided as shown at the back of frame A. y

In connection with the explanation of the Inode of operation of this invention, attention is called to the fact that there is sucient distance between the guide brackets D to permit the follower block H to be moved sidewise from end to end of the notched portion of pattern J. Hence, it is thought to be clear, that the edge h of block I-I may be placed in any notch of the pattern, whereupon the lile guide G, being rigidly attached to the part bearing the block, will be moved correspondingly. It is not essential that the pattern and the key blank should be'arranged vertically one over the other, but it is necessary that they should be parallel throughout with respect to their surfaces and edges, and that the vertical distance from edge h to the lowest point of the V-shaped passage of guide G should be accurately equal to the vertical distance from the upper edge of an unnotched portion of the pattern to the upper edge of the key blank before it has been cut. Thus, when the block H is placed in any notch of the pattern key the V-shaped channel of the guide G will indicate the depth of the notch to be cut in the blank, and by moving the plate E sidewise all the notches of the pat- 'tern may be indicated on the blank in number, size and position. To insure the necessary parallelism just mentioned, there is provided in the face of abutment or stationaryjaw B of the vise a recess b4 which receives part of the thickness of the blank, and, the surface a2 of frame A upon which clamping plate K slides is finished carefully parallel with the bottom ot the recess.

Having now described my invention and explained the manner o operating it, what I claim isl. ln a key-tiling device, the combination with a key blank clamp, o1' a pattern key clamp located at a lower point than the said key 'blank clamp, a movable member, means constructed and arranged to guide the said movable member vertically and horizontally, an adjustable block secured to the said movable member and having, a 4portion adapted and disposed to follow the shape of the key, and a tile guide having a recess in its bottom adapted to admit the key blank, the said tile guide being secured to the said movable member' whereby the said le guide is moved with respect to the key blank in correspondence with the shape or' the pattern key and the depth and extent of the various cuts to be made indicated on the key blank, substantially as described.

2. In a key-filing device, the combination with a key blank clamp, of a pattern key clamp located at a lower point than the said key blank clamp, a movable member, means constructed and arranged to guide the said movable member vertically and horizontally, an adjustable block secured to the said movable member and having.; a portion adapted and disposed to follow the shape of the key, and a tile guide. the said tile guide being secured to the said movable member whereby the said file guide is moved with respect to the key blank in correspondence with the shape of the pattern key and the depth and extent of the various cuts to be made indicated on the key blank, substantially as described.

3. In a key-filing device, the combination with a key blank clamp, of a pattern key clampy the said clamps beingl arranged to hold the said blank and pattern parallel, a file guide having the form interiorly of the variations in the pattern, a device adapted to engage the variations ot the pattern, and means constructed and arranged to carry the said le guide and said device and give both the same movements, the said le guide being adapted io be presented transversely to the key blank and moved along the surface of the blank thereby indicating visually on the blank the extent and depth of the various cuts to be made, substantially as described.

4. ln a key-tiling device. the combination with a key blank clamp. of a pattern key clamp, a file guide having the form interiorly of the variations in the pattern, a device adapted to engage the variations of the pattern, and means constructed and arranged to carry the said file guide and said device and give both the same movements, the said le guide being adapted to be presented transversely to the key blank and moved along the surface of the blank thereby indicating visually on the blank the extent and depth of the various cuts to be made, substantially as described.

In testimony whereof I aiiix my signature in presence of two Witnesses.

JOHN D. BOWNE.

Witnesses R. B. HOPKINS, ANNA SCHMIHRMUND. 

